Originally Posted by gbfan41649
Here is the website description
The Patented Surface Skimmer Overflow efficiently skims the surface water of the aquarium, removing dissolved organics and other waste material to the filter where these contaminants and other impurities are broken down. The only Surface Skimmer that delivers automatic filter start and stop in the event of electrical power loss. As electrical power returns, the Aqua Lifter automatically initiates water flow, priming the Surface Skimmer Overflow and re-establishing aquarium filtration. This feature does not allow any aquarium water to back drain into the filter box, thus preventing flooding.
The multi directional return nozzle located at the lower corner of the skimmer box consistently delivers optimum surface water movement, increasing gas exchange and keeping waste material in suspension until they are removed by the surface skimmer over-flow system.
So with this box do you need a protien skimmer?
A protein skimmer is a separate piece of equipment, so in the technical sense, no, you don't "need" a protein skimmer.
A protein skimmer and a surface skimmer both have "skimmer" in the name, but perform very different functions.
In saltwater tanks, proteins caused by breaking down plant and animal matter (referred to collectively as Dissolved Organic Compounds or DOCs) tend to collect on the surface of the water, due to seawater's increased surface tension. This causes a protein "scum" to accumulate on the surface of the tank, which can get so thick that it can inhibit gas exchange and block out light. So the way you address this is by using overflows that skim the water from the surface to get rid of it.
Then, once it's in the filter, it generally ends up returned back to the tank, or you can use a protein skimmer... it's purpose is to completely remove those DOCs from the water, whereas a surface skimmer just takes that protein scum and just mixes it up back in the water.
SO ideally, you have both... the surface skimmer (which again.. ANY overflow box will do) removes the scum from the surface, and a protein skimmer which removes the gunk and puts it into a container for you to remove.
SO no, you don't NEED a protein skimmer per se, but you SHOULD have one.. it sure helps as sharkbait said. Many people would consider a protein skimmer an absolutely necessary piece of equipment. Be warned... if you are on a budget... they are pricey, so be sure to budget properly for one.